Slip-On Inserts Features KICK-EEZ Sorbothane RECOIL INSERTS provides an additional layer of recoil protection. These inserts fit precisely into the KICK-EEZ SLIP-OVER RECOIL PAD... or they can easily be added to any of the most popular slip-on style recoil pads (trim to fit if needed). KICK-EEZ RECOIL INSERTS are perfect for adjusting length-of-pull just add or combine inserts to modify your length-of-pull as needed. Slip-On Inserts Specifications Contains 2 1/4 inserts Note: 100% Sorbothane 1/2 Insert Included. These can be used with other Slip-On Pads to help reduce recoil.